Pressing-machine.



C. VON PHILP.

PRESSING MACHINE.

APPLICATION FILED JAN-27.1917

Patented Feb. 25, 1919.

5 SHEETSSHEET l- QM )gW j.

C. VON PHILP.

PRESSING MACHINE.

APPLICATION FILED 1AN.21.1917.

1,295,645 Patented. Feb.25,1919.

5 SHEETS SHEET 2.

C. VON PHILP.

PRESSING MACHINE.

APPLICATION HLED 1AN.27.1917.

1,295,645. Patented Feb. 25,1919.

5 SHEETSSHEET 4.

w W m f GM m WM g W By C. VON PHILP.

PRESSING MACHINE.

APPLICATION FILED JAN.27.19I7. I 1,295,645,. Patented Feb. 25, 1919.

5 SHEETSS'HEET'5.

HT TOR/V5 Y CASIMIR VON PHILP, BETHLEHEM, .PENNSYLVTANIA.

PRESSING-MACHINE.

Specification of Letters Patent.

Patented Feb. as, rare.

Application filed January 27, 1917. Serial No. 144,823.

Pressing-Machines, of which the following is'a specification.

This invention relates more articularly to a pressing machine in which te material to be pressed is fed in a continuous web by astep by stepmotion to intermittently acting pressing mechanism, pressing machines ofthis type being particularly adapted for.

pressing cloth fabric, although not necessarily limited to such use.

The invention has for an object to pro-- vide novel and improved controlmeans whereby alternate action of the web feed mezhanism and pressingmechanism is obtained.

Other objects relate to the accurate feeding ofthe web to the pressingmechanism and the close relative timing of the cloth feed mechanism andpressing mechanism.

For further comprehension of the invention and of the objects andadvantages thereof reference will be hadto the follow- Fig. 3 is ahorizontal section on the line 3-3 of Fig. 2 but on a larger scale andshowing only the high pressure valve and its operating means.

Fig. 4 is a detail plan view of the control mechanism, the valves notbeing shown.

Fig. 5 is a horizontal section on the line 5-5 of Fig.2.

Fig. 6 is a detail horizontal section on the line 66 of Fig. 2, showingparticularly the low pressure valve operating means.

Fig. 7 is a detail horizontal section on the line 77 of Fig. 2, showingparticularly the valve control cams.

Fig. 8 is'a detail fed mechanism.

plan view of the cloth Fig. 9 is a detail elevation showing the maincloth feed roll and related parts.

Fig. 10 is an enlarged detail elevation taken at right angles to Fig. 9showing the mounting of the presser roll.-

Fig. 11 is a diagrammatic view illustrating the run of the cloth throughthe press.

In the drawings 1 indicates generally the pressing portion proper of acloth pressing machine, this pressing portion proper being of any wellknown or approved construction and having a stationary upper pressplaten 2, a reciprocable lower press platen 3 and an intermediate orfloating platen 4, the platens 2 and 3 being guided in their movement bythe columns 5 in the usual manner. Detail reference to the construe tionof these platens is not deemed necessary as the construction and mannerof mounting thereof is well known. The lower platen is reciprocated byhydraulic means as usual the novelty in the present construction, in

so far as it relates to the pressing mechanism residing in the means forcontrolling admission of liquid to raise the platen. The valve device,through the operation of which flow of liquid is controlled, isindicated generally at 10 in Fig. 1. The control means is adapted toalternate the action of the valve mechanism with the cloth feedmechanism, to which further detail reference will be made and which ishere shown as operated from a horizontal shaft 11. Mounted in suitablebearings on the front of the press is the drive shaft 12 which extendsabove and parallel to the shaft 11. The shaft 12 is connected to theshaft 11 by an intermittently operating connection which I have hereshown as a gear 13 fixed on the shaft 11 and meshing with a second gear14 loose upon the drive shaft and adapted to be engaged at certain timesby a clutch 15' on the drive shaft to cause gear 14 to rotate with thelatter. The means which I have devised and prefer to employ to efi'ectthis intermittent engagement comprises a cam 20 fixed upon a verticalcam shaft 21 journaled in a housing 22 fixed to the press in anysuitable manner. This shaft has fixed thereon a worm gear 23 whichmeshes with a worm pinion 24: fixed to one end of the drive shaft 12whereby shaft 21 is constantly rotated. Engaging with cam 20 is a roller25 mounted in the end of an arm 26 which latter is fixed to a hub 27which is eccentrically mounted in a sleeve 28 journaled in a suitablebearing 29 on the press, this hub having also secured thereto a clutchyoke 30 which engages the clutch 15 in the usual manner as shown at 31.The action of the cam 20, acting through arm 26 and yoke 30 is torelease the clutch, a spring 32 which encircles the shaft 12 normallytending to throw the clutch into engagement with gear 14. Fixed tosleeve 28 is an arm 33 provided with a pin 34 adapted to engage in anyone of a series of perforations journal bracket 29. By this means therotative axis of the clutch yoke 30 may be varied to effect desiredadjustment of the clutch to compensate for wear or for other purposes.

As will be apparent the action of the feeding mechanism is controlledfrom the cam shaft 21 and the action of the pressing mechanism is alsopreferably controlled from this shaft by a suitable cam device mountedthereon.

To this end a vertical rock shaft 50 is mounted in any suitable bearingson the press with its upper end adjacent the lower end of the cam shaft21 on which latter are fixed a pair of cams 51 and 52 disposed one abovethe other and which are adapted to be engaged bya pair of rollers, 53and 54 respectively mounted in the ends of a bellcrank 55 fixed on therock shaft, the arms of the bell crank being vertically offset as shownto 'cause engagement of the rollers each with its respective cam. Thelower end of this rock shaft 50 is connected to, and adapted to operate,the valve mechanism. Referring more in detail to this valve mechanismwhich includes a high pressure valve and a low pressure valve, the highpressure valve comprising wc'asing 57 having a pair of valve chambers 58and 59 in which aredis posed valves 60 and 61 mounted on stems 62 and63, valve 60 being the inlet valve and valve 61 the outlet valve. Apassage 64 leads from the exterior of the casing to valve chamber 58 anda suitable pipe leads from a source of fluid under pressure to thepassage 64.

A passage 66, controlled by the valve 60, leads from the valve chamber58 and communicates with the valve chamber 59 by means of a transversepassage 65. From the transverse passage 65 an outlet passage 65 leadsdownwardly to the exterior of the casing to connect with a passageleading into the low pressure valve, as will presently be pointed out.From the valve chamber 59 a passage 67, controlled by valve 61, leads tothe exterior of the casing. The passage 7 is the exhaust through whichthe initial or high pressure exhaust takes place and 35in an extension36 of themay be connected with a suitable pipe to conduct the liquid toany desired point.

The valve stems 62 and 63 project through the casing at their forwardends into close proximity to a pair of rods 68 and 69 alined with thestems and guided in a fixed bracket 70 the opposite ends of such rodsbeing pivotally connected as at 71 and 72 to a pair of connecting rodsor bars 73 and 74 which in turn are pivoted to cars 75 and 76 formed theframe of the press and containing three valve chambers, 91, 92 and 93 inwhich are mounted valves 94, 95 and 96 respectively, springs 97, 98 and99 respectively normally tending to seat these valves.

The stem 100 of valve 94 has mounted upon the forward projecting portionthereof a collar 101 held against rearward movement on the stem by nuts102 threaded on the stem, a coiled spring 103 hearing between thiscollar and a second collar 104 slidaloleon the stem. This latter collaris adapted to be engaged by a pair of fingers 105 projecting from a hub106 fixed to the rock shaft 50. When the rock shaft is oscillated in onedirection these fingers will exert a resilient pressure in an openingdirection on valve 94.

The valves 95 and 96 are co-axiallydisposed in opposed relation, valve96 being provided with a proj ecting stem 110 to which is pivoted a pairof links 111 whose opposite ends are connected by a. slot andpin lostmotion connection 112 to an arm 113 fixed to the rock shaft 50.

Leading to the exterior of the casing 90 are a series of passages 114,115, 116 and 117. Of these, 116 and 117 communicate respectively withthe valve chambers 92 and 93 while the passage 115 is controlled byvalve 94. The valve chambers 91 and 92 are in constant communicationthrough a passage 118 while a passage 119, controlled by each of thevalves 95 and 96 connects the valve chambers 92 and 93. Leading from thepassage 116 to the pressure or lift chamber of the press is a pipe 120.

Valve 96 is the intake control valve and the passage 117 is connectedthrough a suitable pipe to a source of fluid under low pressure. Valve94 is the final or quick action exhaust valve and the passage 115, whichit controls, may be connected to conduct the exhaust liquid to anydesired point. Valve' acts as a check valve to automatically shut 01fback flow through the low pressure system when the high pressure systemis working. The passage 114 leads from valve chamber 91 to the exteriorof the valve casing and is connected with the outlet 65 in the highpressure valve, a suitable union 114 being provided to connect thesepassages 114 and 65 to one another.

Referring now more in detail to the cloth feed mechanism, the shaft 11extends across the face of the press to either side thereof and hasfixed upon opposite ends bevel gears and 126 which mesh with similargears 127 and 128 on the trunnions of cloth feed rollers 129 andsuitably supported in side frame plates of which there are a pair oneach side of the press, and which depend from fixed arms 141 and 142projecting on opposite sides of the press, the side frame plates beingnumbered 143 and 144. Supported in these side frame plates are clothfeed rollers (ill of which there are a'series between each pair ofplates, and which are driven in a well known manner in unison at equalsurface speeds by suitable trains of. gears indicated at 145 and 146 inFig. 8.

In the view shown in Fig. 1 of the drawings the cloth is fed into-thepress from the right hand side thereof, this side of the press beingdesignated generally as the feeding in side while the opposite or lefthand side isdesignated as the receiving side. In the presentinstancethere are six of these gear driven cloth feed rollers mounted in theside frame plates on each side of the press, those on the right handside being numbered 129, 130, 131, 132, 133 and 134 and those on theleft hand side being numbered 135,136, 137, 138, 139

and 140.

In the present instance the main cloth gripping means to advance the webcomprises a comparatively large drum or roller 150 j ournaled instandards 151 projecting upwardly from the arms '142'on the receivingside of Mounted in vertically slidable the press. bearings 152 abovethis roller is a weighted roller 153 which is adapted to rest freely onthe drum 150 and is driven therefrom 'at equal surface speed by theintermeshing. gears 154 and 155 suitably fixed to the drum and roller torotate therewith. The drum is driven at equal surface. speed with theseries of rollers carried by the side frame plates 144 by means of asprocket chain-156 looped over a pair of sprocket wheels 157 and 158 oneof which is on the drum shaftiand the other fixed to a gear 159 meshingwith the train of gears-146. Mounted inthe standards below and to oneside of the drum 150 is an idler roller 160. t

' In the present instance the roller 153 is adapted to engage the upperwalls of the openings 164 when the shaft is rocked in one direction andraise the bearings 152 and with them the roller 153. This shaft isrocked by means of a bell crank 166 fixed to .one end thereof and havingat the end of one arm a spring pressed pin 167 adapted to engage ineither one of a pair of perforations in a plate 168 projecting from thestandard, to retain the roller in raised or lowered position.

In addition to the already described cloth feed rollers suitably mountedidler rollers 17 0 and 171 are provided on the feeding in and receivingsides respectively of the press.

1 above the floating platen 4,.is indicated generally by the referencecharacter X and the lower run, or that passing below the floatingplaten, by the reference character Y. The upper run is fed in overcertain of the idler rollers .170, then around the'feed roller 131, thenback and forth in a series of reaches (X X X X X around the feed'rollers136, 130, 135 and 129 and between the press platens, passing finallyunder the feed roller 137 to the main driving roller or drum. 150 andthen out over certain of the idlers 171. The lower run Y is passedaround certain of the idler rolls then around feed roll 134 and back andforth in a series of reaches (Y Y Y Y Y around the feed rolls 1,39, 133,138, 132 and between the press platens, finally passing under the feedroll 140 to the main cloth drlving roll and out.

To permit of operation of the cloth feed mechanism independently of theabove described control means when desired, T have provided meanswhereby the shaft 11 may be driven independently of the shaft 12. Ashere shown the shaft has fixed on the end thereof a pulley driven by abelt 181 21 rotate constantly. The description of the cycle ofoperations starts at the point when the cloth feeding means has justcome to rest and the press platens are about to be operated, in whichposition all the valves are closed with the straight face presented bythe cams 51 and 52 (see Fig. 7 at right angles to a line intersectingthe axes of the shafts 21 and 50, the shaft 50 being in neutral positionsince neither of the rollers 53 or 54 is engaged by its respective cam.This position is the position assumed just before the parts reach theposition indicated in Fig. 7, the direction of rotation of the cam shaft21 being in the direction of the arrow A in Fig. 7 Rotation of the camshaft will cause the roller 53 to be engaged by the rise 51 on cam 51and swing the rock shaft 50 in the direction of the arrow B in Figs. 5and 7.

This motion of shaft 50 will cause the arm 113 to pull the valve stem110 and raise valve 96 from its seat and allow the low pressure fluid toflow in through passages 117, lifting valve 95 from its seat, and passout through 116 and pipe 120 to the press and raise the plunger untilthe cloth is pressed between the platens 3 and-4 and the entablature 2.As the fluid then. comes to rest the checkvalve 95 will closeautomatically by the action of spring 98. By this time the shaft 50 hasbeen turned by the cam motion to a point where the rod 68 has engagedthe stem 62 of valve 60, the cams 51 and 52 and levers 54 and 55 beingthen in the position shown in Fig. 7. A slight further rotation of thecam 51 causes the stem 62' of valve to be depressed and the latteropened, establishing communication between the high pressure source andthe press throughpassages 64, 66, 65 and 65 of the high pressure valveand passages 114, 118 and 116 of the low pressure valve and pipe 120.

The concentric portion of cam 51, which extends through substantially180 deg., is now engaging the roller 53 and, in consequence, valves 96and 60 remain open while the cam shaft 21 makes a half turn farther.

' The'rise 52 of cam 52 then engages the roller 54 and swings the rockshaft 50 in the direction indicated by the arrow D in Figs. 3 and 6, theroller 53 riding down the fall 51 on the cam 51. The first part of thismotion draws rod 68 back, allowing spring 80 to close valve 60. Sincethe arm 113 is by this movement swung in an opposite direction to thatindicated by the arrow B in Fig. 5 the spring 99 forces valve 96 back toits seat.

- in this direction as the roller 54 travels up I The fingers 105 alsocompress the spring 103, this pressure being transmitted to the valvestem 100 of the valve 94 by the collar 101 and nuts 102.

The continued movement of the rock shaft the rise 52 of cam 52 causesthe rod 69 to engage the valve stem 63 of valves 61 and meas es open thelatter, permitting the liquid to escape through pipe 120 and passages116, 118, 114, 65 65 and 67 When the reduction of the pressure issufiicient spring 103 will push the large valve 94 open and the exhaustwill be completed rapidly through passage 115, the roller 54 riding onthe comparatively short concentric portion of cam 52 during this period.A slight further movement of the cam shaft returns the rock shaft 50 toneutral position.

The press platens 3 and 4 having fallen, the cloth is free to beadvanced again, which is accomplished by roller 25 falling into thedepression in cam 20 on the upper end of the cam shaft 21, thuspermitting spring 32 to move clutch 15 into engagement with gear 14 androtate the latter and, through gear 13, the shaft 11. Shaft 11 beinggeared, as

previously pointed out, to all the cloth feed rolls the latter will berotated and the cloth advanced, the rate of speed of the various partsbeing arranged to cause the cloth to be advanced the proper distance bythe time the roller 25 is moved out of the depression in cam 20 anddisengages clutch 15, through arms 26 and 30. As soon as the roller 25moves out of the depression in cam 20 the rise 51 in cam 51 iscommencing to engage the roller 54 and the operation of the valvemechanism is repeated.

It will be apparent that various changes and modifications might be madein the construction disclosed without departing from the spirit of myinvention and the right is reserved to all changes, modification ordepartures as come within the scope of the appended claims.

I claim:-

1. In a pressing machine, cloth feeding mechanism, pressing mechanism,automatic means for imparting alternate intermittent operation to saidcloth feeding mechanism and pressing mechanism, and means whereby saidcloth feeding mechanism may be operated for any desired length of timewithout operation of the pressing mechanism.

2. In a pressing machine, cloth feeding mechanism, pressing mechanism, ashaft adapted to operate the cloth feeding mechanism, a drive shaft in-'control relation with the said pressing mechanism, a releasableoperative connection between the said drive shaft and the shaft foroperating the cloth feeding mechanism, a power shaft, a connectionbetween said power shaft and said drive shaft, and a second connectionbetween said power shaft and the shaft for operating the cloth feedingmechanism, said last mentioned connection being inoperative duringnormal operation of the pressing member,

3. In a pressing machine, hydraulically actuated pressing mechanism,V2Ll"e mechanism for controlling said pressing mechanism,

an operating shaft for said valve-mechanism,"

a plurality of rolls for feeding a continuous web to said pressingmechanism, an operating shaft forsaid rolls, a drive shaft, a cam shaftdriven by said drive shaft, a cam upon said cam shaft, means upon saidvalve mechanism operating shaft engaging said cam whereby said valvemechanism is intermittently actuated, a clutch opbrated connectionbetween said drive shaft and said feed roll operating shafts, a secondcam upon the cam shaft and ineans engaging said cam adapted tointermittently operate the said clutch alternately to the operation ofthe valve.

mechanism by the first mentioned cam.

4. In a pressing machine, hydraulically actuated pressing mechanism,valve mechanism for controlling said pressing mechanism, an operatingshaft for said valve mech-' anism, a plurality of rolls for feeding acontinuous web to said pressing mechanism, a constantly rotating driveshaft, a constantly rotating cam shaft driven therefrom, a cam upon saidcam shaft, a rocker arm upon said valve mechanism operating shaftengaging said cam whereby said valve mechanism is intermittentlyoperated, a clutch operated ,connection between said drive shaft andsaid feed roll operating shaft.

5. In a pressing machine, pressing mecha-,

nism, control means therefor, means includ ing a shaft for feeding acontinuous web to said pressing mechanism, a drive shaft, a cam shaftoperated thereby and in operative relation to said control means, a camupon said shaft, an arm in engagement with the said cam, a rotatable hubfrom which said arm projects, a pair of gears connecting the firstmentioned shaft and drive shaft, one of said gears being loose upon itsshaft and the other fixed, a clutch adapted to put the loose gear inoperative engagement with its shaft,

and a second arm projecting from the said hub and engaging the saidclutch to operate the latter. a

6. In a pressing machine, pressing mechanism, control means, therefor,means including a shaft for feeding .a continuous web to said pressingmechanism, a drive shaft. a cam shaft operated thereby and in operativerelation to said control means, a cam upon said shaft, an arm inengagement with the said Gain, a rotatable hub from which saidarm-projects, a pair of gears connecting the first mentioned shaft anddrive shaft, one of sa d gears being loose upon its shaft and the otherfixed, a clutch'adapted to put the loose gear in operative engagementwith its shaft, and a second arm projecting from the said hub andengaging the said clutch to 0perate the latter and means for adjustingsaid hub to vary the position of its rotative axis. 7. In a pressingmachine, hydraulically. actuated pressing mechanism, valve mechanism forcontrolling said pressing mechanism, including separate pressure andexhaust valves, means for feeding a continu-' ous web to said pressingmechanism, a cam shaft, an operative connection between said cam shaftand web feeding means adapted -to cause intermittent operation of thelatter,

a rock shaft operatively connected ,to both the pressure and exhaustvalve, and a cam and arm connectionbetween said-cam shaft and rock shaftwhereby the latter is alternately rocked in opposite directions tooperate the said valves.

8. In a pressing machine, hydraulically actuated pressing mechanism,valve mechanism for controlling said pressing mechanism, includingseparate pressure and exhaust valves, means for feeding a continuous webto said pressing mechanism by a step by step motion, and means adaptedto act alternately with said web feeding means to cause independentoperat10n ofsaid pressure and exhaust valves.

anism for controlling said pressing mechanism, including low pressureand highl pressure and exhaust valves, means for feedmg a continuous webto said presslng mechanism, a constantly driven cam shaft, a

cam and arm'connection between said cam shaft and web feeding meanswhereby the latter is caused to operate intermittently,

a rock shaft operatively connectedto each of said valves, and 'a cam andarm connection between said cam shaft and rock shaft whereby the latteris rocked to operate the said valves in the order of naming alternatelywith the action of said web feedlng means.

11. In a pressing machine, intermittently acting'pressing mechanism,means for 1nt'ermittently feeding a continuous web to said pressingmechanism alternately with the action thereof, said means comprlslng aseries of comparatively small rollers adapted to support the web whilethe latter is passing through the pressing mechanism, a comparativelylarge drum, and a presser roller bearing against said drum, andmechanical connections between said small rollers and drum and pressureroller whereby the same are all driven at equal surface speeds.

IMP

12. In a pressing machine, intermittently acting pressing mechanism,means for intermittently feeding a continuous Web to said pressingmechanism alternately With 5 the action thereof, said means comprising aseries of comparatively small rollers adapted to support the Web Whilethe latter is passing through the press mechanism, a comparatively largedrum, means for driving said large drum at equal surface speed With thesaid rollers, and a displaceable presser roller normally bearing againstsaid drum and means for driving said roller from the drum at equalsurface speed therewith.

- Signed at Bethlehem, Pennsylvania, this fifth day of January, 1917.

v CASIMIR VON PHILP.

